CN110302914A - It is a kind of agricultural with can water-level alarm spraying machine - Google Patents

It is a kind of agricultural with can water-level alarm spraying machine Download PDF

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Publication number
CN110302914A
CN110302914A CN201910570947.9A CN201910570947A CN110302914A CN 110302914 A CN110302914 A CN 110302914A CN 201910570947 A CN201910570947 A CN 201910570947A CN 110302914 A CN110302914 A CN 110302914A
Authority
CN
China
Prior art keywords
water
fixedly connected
electric contact
slide bar
spray assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910570947.9A
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Chinese (zh)
Inventor
陈天津
倪建华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU YONGLIAN MODERN AGRICULTURAL DEVELOPMENT Co Ltd
Original Assignee
JIANGSU YONGLIAN MODERN AGRICULTURAL DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by JIANGSU YONGLIAN MODERN AGRICULTURAL DEVELOPMENT Co Ltd filed Critical JIANGSU YONGLIAN MODERN AGRICULTURAL DEVELOPMENT Co Ltd
Priority to CN201910570947.9A priority Critical patent/CN110302914A/en
Publication of CN110302914A publication Critical patent/CN110302914A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/081Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to the weight of a reservoir or container for liquid or other fluent material; responsive to level or volume of liquid or other fluent material in a reservoir or container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material

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  • Catching Or Destruction (AREA)

Abstract

The invention belongs to agricultural technology fields, disclose it is a kind of agricultural with can water-level alarm spraying machine, including spray assembly and the protection component being mounted on inside spray assembly, protecting component includes communicating pipe, electric contact piece, floating block, insulation sleeve and slide bar, slide bar is fixedly connected with inside communicating pipe, the outer surface of slide bar is arranged with floating block, electric contact piece is equipped on the inside of the top of floating block and slide bar, and it is located at the electric contact piece on the inside of slide bar and external power supply electric connection, electric contact piece and spray assembly on floating block are electrically connected, when water level inside spray assembly is higher, floating block is driven to move up by the buoyancy of water, two electric contact pieces are made to be bonded to form access, spray assembly is set to work, when water level is reduced to certain position, two electric contact pieces separate to form open circuit, spray assembly power-off stops working, it avoids and works as spray assembly Spray assembly electricity works when water level inside is lower, the problem of causing spray assembly to dally, influence internal element service life.

Description

It is a kind of agricultural with can water-level alarm spraying machine
Technical field
The invention belongs to agricultural technology field more particularly to it is a kind of agricultural with can water-level alarm spraying machine.
Background technique
Spraying machine is that liquid is dispersed into a kind of misty machine, is mechanical one kind, point agricultural, medical and other use (such as industrial) on the way, the agricultural equipment for plant protection for being classified as agricultural machinery;Manually driven is generally referred to as sprayer, and power (starts Mechanical, electrical motivation) driving be spraying machine;Spraying machine presses working principle liquid separation power, strength and centrifugal dewing machine.
Spraying machine is typically provided water tank, will pass through the spray equipped with said minuscule hole after the clear water extraction inside water tank by water pump Head sprays, and is atomized clear water, when the clear water water level inside water tank is lower, if adding clear water not in time, does not simply fail to clear water Extraction, and will cause water pump dry run, seriously affect the service life of water pump.
Summary of the invention
The present invention provide it is a kind of agricultural with can water-level alarm spraying machine, it is intended to solve mist machine and be typically provided water tank, pass through Water pump will be sprayed after the clear water extraction inside water tank by being equipped with the spray head of said minuscule hole, be atomized clear water, inside water tank When clear water water level is lower, if adding clear water not in time, do not simply fail to extract out in clear water, and will cause water pump dry run, seriously The problem of influencing the service life of water pump.
The invention is realized in this way a kind of agricultural with can water-level alarm spraying machine, including spray assembly and be mounted on Protection component inside the spray assembly, the protection component include communicating pipe, four electric contact pieces, floating block, two insulation Set and two slide bars, are fixedly connected on inside the spray assembly communicating pipe, and be connected with the spray assembly, two The slide bar is arranged along the communicating pipe short transverse, and is fixedly connected with the communicating pipe, and the floating block is set in described The outer surface of slide bar, two insulation sleeves are located at the floating block two sides, and are fixedly connected with the floating block, two of them The electric contact piece is respectively fixedly connected at the top of two insulation sleeves, and electric contact piece described in another two is fixedly connected on described On the inside of slide bar.
Preferably, the protection component further includes alarm, and the alarm positive and negative anodes are respectively and positioned at the insulation sleeve Top and the electric contact piece on the inside of the slide bar are electrically connected.
Preferably, the protection component further includes the fixed value resistance, and the fixed value resistance is connected company with the alarm It is connected in circuit, and is connected in parallel with the electric contact piece.
Preferably, the spray assembly includes water tank, motor, water pump, filter, connecting tube and spray head, and the motor is solid Surely it is connected to the inside of the water tank, the water pump is fixedly connected with the bottom of the water tank, and the filter is fixedly connected on The input terminal of the water pump, the bottom end of the connecting tube are fixedly connected with the output end of the water pump, the top of the connecting tube It is fixedly connected on the spray head, the spray head is fixedly connected on the lateral wall of the water tank.
Preferably, the inside of the water tank is equipped with partition, and the water tank is separated into upper and lower two and do not connected mutually by the partition Logical cavity.
Preferably, the communicating pipe is located inside the water tank, and the bottom of the communicating pipe run through the partition, and with The bottom of the water tank fits.
Preferably, the slide bar is in round bar shape structure, and the both ends of the floating block are in rectangular plate-like structure, the floating block both ends Circular through hole is offered, the internal diameter of the circular through hole is greater than the slide bar.
Preferably, the water pump is electrically connected with the electric contact piece being fixedly connected at the top of the insulation sleeve, fixed The electric contact piece and external power supply being connected on the inside of the slide bar are electrically connected.
Compared with prior art, the beneficial effects of the present invention are: a kind of of the invention agricultural with can water-level alarm be sprayed Machine is fixedly connected with cunning by the way that the communicating pipe, the electric contact piece, the floating block and the slide bar is arranged inside communicating pipe Bar, the outer surface of slide bar are arranged with floating block, electric contact piece are equipped on the inside of the top of floating block and slide bar, and be located on the inside of slide bar Electric contact piece and external power supply be electrically connected, electric contact piece on floating block and spray assembly are electrically connected, when spraying group When water level inside part is higher, drives floating block to move up by the buoyancy of water, two electric contact pieces is made to be bonded to form access, make spraying Component operation, when water level is reduced to certain position, two electric contact pieces separate to form open circuit, and spray assembly power-off stops work Make, avoids the spray assembly electricity when spray assembly water level inside is lower and work, cause spray assembly to dally, influence internal element The problem of service life.
It should be understood that the above is a preferred embodiment of the present invention, it is noted that for the art For those of ordinary skill, various improvements and modifications may be made without departing from the principle of the present invention, these improvement Also it is considered as protection scope of the present invention with retouching.
Detailed description of the invention
Fig. 1 is overall schematic of the invention;
Fig. 2 is control schematic diagram of the invention;
Fig. 3 is circuit diagram of the invention;
In figure: 1, spray assembly;11, water tank;12, motor;13, water pump;14, filter;15, connecting tube;16, spray head; 2, component is protected;21, communicating pipe;22, electric contact piece;23, floating block;24, insulation sleeve;25, slide bar;26, fixed value resistance;27, it reports Alert device.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention System.In addition, in the description of the present invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
Please refer to Fig. 1-3, the present invention provides a kind of scheme: a kind of agricultural with can water-level alarm spraying machine, including it is spraying Component 1 and the protection component 2 being mounted on inside spray assembly 1, protection component 2 include 21, four electric contact pieces 22 of communicating pipe, float 23, two insulation sleeves 24 of block and are fixedly connected on inside spray assembly 1 two slide bars 25, communicating pipe 21, and with 1 phase of spray assembly Connection, two slide bars 25 are arranged along 21 short transverse of communicating pipe, and are fixedly connected with communicating pipe 21, and floating block 23 is set in slide bar 25 outer surface, two insulation sleeves 24 are located at 23 two sides of floating block, and are fixedly connected with floating block 23, two of them electric contact piece 22 are respectively fixedly connected in two 24 tops of insulation sleeve, and another two electric contact piece 22 is fixedly connected on 25 inside of slide bar.
In the present embodiment, the side of water tank 11 is additionally provided with communicating pipe 21, is connected inside communicating pipe 21 and water tank 11, Two slide bars 25 along 21 short transverse of communicating pipe be arranged, and be fixedly connected at the top of communicating pipe 21, floating block 23 is set in slide bar 25 outer surface, two insulation sleeves 24 are located at 23 two sides of floating block, and are fixedly connected with floating block 23, two of them electric contact piece 22 are respectively fixedly connected in two 24 tops of insulation sleeve, and another two electric contact piece 22 is fixedly connected on 25 inside of slide bar, water pump 13 It is electrically connected with the electric contact piece 22 for being fixedly connected on 24 top of insulation sleeve, is fixedly connected on the electric contact piece 22 of 25 inside of slide bar It is electrically connected with external power supply, due to there is clear water inside water tank 11, floating block 23 is upward along slide bar 25 under the action of clear water buoyancy Sliding, until the electric contact piece 22 on the insulation sleeve 24 being fixedly connected on floating block 23 connects with the electricity for being fixedly connected on 25 inside of slide bar Contact 22 is bonded, and forms access at this time, is electrically connected water pump 13 and external power supply, water pump 13 will be in water tank 11 after being connected to power supply The clear water in portion is transported to inside spray head 16 by connecting tube 15, and multiple circular holes are offered on spray head 16, and clear water is sprayed by circular hole Out, so that clear water is atomized, as water pump 13 extracts the increase of water out, the water level inside water tank 11 is gradually decreased, floating block 23 Decline together with water level under the effect of gravity, when water surface elevation reduces to a certain extent, the electric contact piece 22 at 23 top of floating block With the electric contact piece 22 for being fixedly connected on 25 inside of slide bar, to form open circuit, water pump 13 stops working at this time, avoids water tank It when clear water water level inside 11 is lower, if adding clear water not in time, does not simply fail to extract out in clear water, and it is empty to will cause water pump 13 The problem of operating, seriously affecting the service life of water pump 13.
In the present embodiment, in use, being equipped with water pump 13 inside water tank to suitable clear water is added inside water tank 11, The input terminal of water pump 13 is connect with filter 14, by filter 14 by the contaminant filter in water, the impurity in water is avoided to enter Inside water pump 13, the internal element of water pump 13 is caused to damage, the output end of water pump 13 is fixedly connected with connecting tube 15, water pump 13 It is connected to by connecting tube 15 with spray head 16, the side of water tank 11 is additionally provided with communicating pipe 21, is connected inside communicating pipe 21 and water tank 11 Logical, two slide bars 25 are arranged along 21 short transverse of communicating pipe, and be fixedly connected at the top of communicating pipe 21, floating block 23 is set in cunning The outer surface of bar 25, two insulation sleeves 24 are located at 23 two sides of floating block, and are fixedly connected with floating block 23, two of them electrical contact Piece 22 is respectively fixedly connected in two 24 tops of insulation sleeve, and another two electric contact piece 22 is fixedly connected on 25 inside of slide bar, water pump 13 are electrically connected with the electric contact piece 22 for being fixedly connected on 24 top of insulation sleeve, are fixedly connected on the electric contact piece of 25 inside of slide bar 22 are electrically connected with external power supply, due to there is clear water inside water tank 11, floating block 23 under the action of clear water buoyancy along slide bar 25 to Upper sliding, up to the electric contact piece 22 on the insulation sleeve 24 being fixedly connected on floating block 23 and the electricity being fixedly connected on the inside of slide bar 25 Contact chip 22 is bonded, and forms access at this time, is electrically connected water pump 13 and external power supply, by water tank 11 after the connection power supply of water pump 13 Internal clear water is transported to inside spray head 16 by connecting tube 15, and multiple circular holes are offered on spray head 16, and clear water is sprayed by circular hole Spill and, so that clear water is atomized, as water pump 13 extracts the increase of water out, the water level inside water tank 11 is gradually decreased, floating block 23 decline with water level together under the effect of gravity, when water surface elevation reduces to a certain extent, the electric contact piece at 23 top of floating block 22 with the electric contact piece 22 that is fixedly connected on the inside of slide bar 25, to form open circuit, water pump 13 stops working at this time, avoids water When clear water water level inside case 11 is lower, if adding clear water not in time, do not simply fail to extract out in clear water, and will cause water pump 13 Dry run, the problem of seriously affecting the service life of water pump 13,27 positive and negative anodes of alarm respectively be located at 24 top of insulation sleeve and Electric contact piece 22 positioned at 25 inside of slide bar is electrically connected, and fixed value resistance 26 and alarm 27 are connected in series in circuit, and It is connected in parallel with electric contact piece 22, when the fitting of electric contact piece 22 being made to form access, due to the effect of fixed value resistance 26, electric current is direct It is circulated by electric contact piece 22, after electric contact piece 22 is formed separately open circuit, electric current is connect by fixed value resistance 26 with alarm 27 It is logical, so that alarm 27 is alarmed, reminds staff in time to inside water tank 11 plus water.
Further, protection component 2 further includes alarm 27, and 27 positive and negative anodes of alarm are respectively and positioned at 24 top of insulation sleeve It is electrically connected with the electric contact piece 22 for being located at 25 inside of slide bar.
In the present embodiment, setting alarm 27 is for alarming, by 27 positive and negative anodes of alarm respectively and positioned at insulation sleeve 24 tops and the electric contact piece 22 on the inside of slide bar 25 are electrically connected, and after so that electric contact piece 22 is formed open circuit, electric current is by report Alert device 27, so that alarm 27 be made to alarm.
Further, protection component 2 further includes fixed value resistance 26, and fixed value resistance 26 and alarm 27 are connected in series in circuit In the middle, and with electric contact piece 22 it is connected in parallel.
In the present embodiment, fixed value resistance 26 and alarm 27 are connected in series in circuit, and and electric contact piece 22 are connected in parallel, and when the fitting of electric contact piece 22 being made to form access, due to the effect of fixed value resistance 26, electric current directly passes through electrical contact Piece 22 circulates, and after electric contact piece 22 is formed separately open circuit, electric current is connected by fixed value resistance 26 and alarm 27, makes alarm 27 alarms.
Further, spray assembly 1 includes water tank 11, motor 12, water pump 13, filter 14, connecting tube 15 and spray head 16, Motor 12 is fixedly connected on the inside of water tank 11, and water pump 13 is fixedly connected with the bottom of water tank 11, and filter 14 is fixedly connected on The bottom end of the input terminal of water pump 13, connecting tube 15 is fixedly connected with the output end of water pump 13, and the top of connecting tube 15 is fixedly connected In spray head 16, spray head 16 is fixedly connected on the lateral wall of water tank 11.
In the present embodiment, setting water tank 11 sets clear water for containing, and water pump 13 is arranged in the inside of water tank 11, being used for will Clear water inside water tank 11 is pumped into inside connecting tube 15, and clear water is sprayed by spray head 16, water mist is formed, in water pump 13 Input terminal connects filter 14, for the contaminant filter in water is clean, avoids impurity from entering in water pump 13, inside water pump 13 Element impacts.
Further, the inside of water tank 11 is equipped with partition, and water tank 11 is separated into two mutual disconnected skies up and down by partition Chamber.
In the present embodiment, partition is set in the inside of water tank 11, water tank 11 is separated into two up and down by partition Mutual disconnected cavity, makes the protection component 2 being arranged in water tank upper cavity not duck in drink, and avoids protection component 2 Lead to the problem of electric leakage.
Further, communicating pipe 21 is located inside water tank 11, and the bottom of communicating pipe 21 run through partition, and with water tank 11 Bottom fits.
In the present embodiment, communicating pipe 21 is arranged inside water tank 11, and partition is run through simultaneously in the bottom of communicating pipe 21 It is bonded with the bottom of water tank 11, the height of water level inside communicating pipe 21 is identical as the height of water level inside water tank 11.
Further, slide bar 25 is in round bar shape structure, and the both ends of floating block 23 are in rectangular plate-like structure, and 23 both ends of floating block open up There is circular through hole, the internal diameter of the circular through hole is greater than slide bar 25.
In the present embodiment, the both ends of floating block 23 are in rectangular plate-like structure, and 23 both ends of floating block offer circular through hole, should The internal diameter of circular through hole is greater than slide bar 25, so that floating block 23 is slided up and down according to height of water level along slide bar 25, to drive The electric contact piece 22 that its top is fixedly connected slides up and down.
Further, water pump 13 is electrically connected with the electric contact piece 22 for being fixedly connected on 24 top of insulation sleeve, is fixedly connected Electric contact piece 22 and external power supply in 25 inside of slide bar are electrically connected.
In the present embodiment, water pump 13 is electrically connected with the electric contact piece 22 for being fixedly connected on 24 top of insulation sleeve, The electric contact piece 22 and external power supply for being fixedly connected on 25 inside of slide bar are electrically connected, and form two electric contact pieces 22 when being bonded Access, water pump 13 can be connect with external power supply, carry out water pumping work, and when water level is reduced to certain altitude, floating block 23 is with water Position height falls, and separates with the electric contact piece 22 at top, forms open circuit, water pump 13 is disconnected with external power supply at this time.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (8)

1. a kind of agricultural with can water-level alarm spraying machine, including spray assembly (1) and be mounted on inside the spray assembly (1) Protection component (2), which is characterized in that the protection component (2) includes communicating pipe (21), four electric contact pieces (22), floating blocks (23), two insulation sleeves (24) and two slide bars (25), the communicating pipe (21) are fixedly connected in the spray assembly (1) Portion, and be connected with the spray assembly (1), two slide bars (25) are arranged along the communicating pipe (21) short transverse, And be fixedly connected with the communicating pipe (21), the floating block (23) is set in the outer surface of the slide bar (25), and two are described exhausted Edge set (24) is located at the floating block (23) two sides, and is fixedly connected with the floating block (23), is in electrical contact described in two of them Piece (22) is respectively fixedly connected at the top of two insulation sleeves (24), and electric contact piece (22) described in another two is fixedly connected on institute It states on the inside of slide bar (25).
2. a kind of agricultural as described in claim 1 with can water-level alarm spraying machine, which is characterized in that the protection component It (2) further include alarm (27), alarm (27) positive and negative anodes are respectively and at the top of the insulation sleeve (24) and positioned at institute The electric contact piece (22) on the inside of slide bar (25) is stated to be electrically connected.
3. a kind of agricultural as claimed in claim 2 with can water-level alarm spraying machine, which is characterized in that the protection component It (2) further include the fixed value resistance (26), the fixed value resistance (26) and the alarm (27) are connected in series in circuit, And it is connected in parallel with the electric contact piece (22).
4. a kind of agricultural as described in claim 1 with can water-level alarm spraying machine, which is characterized in that the spray assembly It (1) include water tank (11), motor (12), water pump (13), filter (14), connecting tube (15) and spray head (16), the motor (12) it is fixedly connected on the inside of the water tank (11), the water pump (13) is fixedly connected with the bottom of the water tank (11), institute State the input terminal that filter (14) is fixedly connected on the water pump (13), the bottom end and the water pump (13) of the connecting tube (15) Output end be fixedly connected, the top of the connecting tube (15) is fixedly connected on the spray head (16), and the spray head (16) is fixed It is connected to the lateral wall of the water tank (11).
5. a kind of agricultural as claimed in claim 4 with can water-level alarm spraying machine, which is characterized in that the water tank (11) Inside is equipped with partition, and the water tank (11) is separated into two mutual disconnected cavitys up and down by the partition.
6. a kind of agricultural as claimed in claim 5 with can water-level alarm spraying machine, which is characterized in that the communicating pipe (21) It is internal positioned at the water tank (11), and the partition, and the bottom with the water tank (11) are run through in the bottom of the communicating pipe (21) Portion fits.
7. a kind of agricultural as described in claim 1 with can water-level alarm spraying machine, which is characterized in that the slide bar (25) is in The both ends of round bar shape structure, the floating block (23) are in rectangular plate-like structure, and floating block (23) both ends offer circular through hole, should The internal diameter of circular through hole is greater than the slide bar (25).
8. a kind of agricultural as claimed in claim 4 with can water-level alarm spraying machine, which is characterized in that the water pump (13) with It is fixedly connected on the electric contact piece (22) at the top of the insulation sleeve (24) to be electrically connected, is fixedly connected on the slide bar (25) The electric contact piece (22) and external power supply of inside are electrically connected.
CN201910570947.9A 2019-06-28 2019-06-28 It is a kind of agricultural with can water-level alarm spraying machine Pending CN110302914A (en)

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CN201910570947.9A CN110302914A (en) 2019-06-28 2019-06-28 It is a kind of agricultural with can water-level alarm spraying machine

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Application Number Priority Date Filing Date Title
CN201910570947.9A CN110302914A (en) 2019-06-28 2019-06-28 It is a kind of agricultural with can water-level alarm spraying machine

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CN110302914A true CN110302914A (en) 2019-10-08

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN111006340A (en) * 2019-12-20 2020-04-14 衢州若楠智能控制系统有限公司 Adopt resistance adjusting switch's split type humidifier
CN112403139A (en) * 2020-11-27 2021-02-26 刘永香 A high-efficient automatic energy-concerving and environment-protective washing device for purifying waste gas
CN112691805A (en) * 2021-01-15 2021-04-23 上海框特贸易有限公司 Paint spraying machine for preventing inner pipe of paint spraying tank from being blocked

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